# Licensing

{% hint style="info" %}
Click [Here ](https://docs.recognito.vision/license-option)to get details about RECOGNITO license option

[license-option](https://docs.recognito.vision/license-option "mention")
{% endhint %}

## Get your Application ID

To activate SDK, you have to first get your Application ID in your `build.gradle` file:

```gradle
 android { 
     namespace 'com.bio.facerecognition' 
     compileSdk 33 
  
     defaultConfig { 
         applicationId "com.bio.facerecognition" 
         minSdk 24 
         targetSdk 33 
         versionCode 4 
         versionName "1.3" 
```

## Request License

Share your Application ID with us for license key.

[**Contact us**](https://docs.recognito.vision/contact-and-support)

## Activate SDK

[Activate](https://docs.recognito.vision/face-liveness-detection-sdk/integration-guide/api-reference#setactivation) the SDK with license key. Should be called before using of any other functions.

{% code title="MainActivity.kt" %}

```kotlin
import com.bio.facesdk.FaceSDK

val license_str = application.assets.open("license").bufferedReader().use{ 
    it.readText() 
} 
  
var ret = FaceSDK.setActivation(license_str) 
  
if (ret == FaceSDK.SDK_SUCCESS) { 
    ret = FaceSDK.init(assets) 
} 
```

{% endcode %}